[PATCH v9 17/27] bus/vdev: implement device iteration
From: Gaetan Rivet <hidden>
Date: 2018-07-03 22:15:57
Subsystem:
the rest · Maintainer:
Linus Torvalds
Signed-off-by: Gaetan Rivet <redacted> --- drivers/bus/vdev/Makefile | 3 ++- drivers/bus/vdev/vdev.c | 10 ++++---- drivers/bus/vdev/vdev_params.c | 51 +++++++++++++++++++++++++++++++++++++++++ drivers/bus/vdev/vdev_private.h | 26 +++++++++++++++++++++ 4 files changed, 85 insertions(+), 5 deletions(-) create mode 100644 drivers/bus/vdev/vdev_params.c create mode 100644 drivers/bus/vdev/vdev_private.h
diff --git a/drivers/bus/vdev/Makefile b/drivers/bus/vdev/Makefile
index bd0bb8955..1f9cd7ebe 100644
--- a/drivers/bus/vdev/Makefile
+++ b/drivers/bus/vdev/Makefile@@ -19,8 +19,9 @@ EXPORT_MAP := rte_bus_vdev_version.map LIBABIVER := 1 SRCS-y += vdev.c +SRCS-y += vdev_params.c -LDLIBS += -lrte_eal +LDLIBS += -lrte_eal -lrte_kvargs # # Export include files
diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index 6139dd551..e8518833d 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c@@ -23,6 +23,7 @@ #include "rte_bus_vdev.h" #include "vdev_logs.h" +#include "vdev_private.h" #define VDEV_MP_KEY "bus_vdev_mp"
@@ -493,9 +494,9 @@ vdev_probe(void) return ret; } -static struct rte_device * -vdev_find_device(const struct rte_device *start, rte_dev_cmp_t cmp, - const void *data) +struct rte_device * +rte_vdev_find_device(const struct rte_device *start, rte_dev_cmp_t cmp, + const void *data) { const struct rte_vdev_device *vstart; struct rte_vdev_device *dev;
@@ -532,10 +533,11 @@ vdev_unplug(struct rte_device *dev) static struct rte_bus rte_vdev_bus = { .scan = vdev_scan, .probe = vdev_probe, - .find_device = vdev_find_device, + .find_device = rte_vdev_find_device, .plug = vdev_plug, .unplug = vdev_unplug, .parse = vdev_parse, + .dev_iterate = rte_vdev_dev_iterate, }; RTE_REGISTER_BUS(vdev, rte_vdev_bus);
diff --git a/drivers/bus/vdev/vdev_params.c b/drivers/bus/vdev/vdev_params.c
new file mode 100644
index 000000000..842a4684e
--- /dev/null
+++ b/drivers/bus/vdev/vdev_params.c@@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2018 Gaëtan Rivet + */ + +#include <rte_dev.h> +#include <rte_bus.h> +#include <rte_kvargs.h> +#include <rte_errno.h> + +#include "vdev_logs.h" +#include "vdev_private.h" + +enum vdev_params { + RTE_VDEV_PARAMS_MAX, +}; + +static const char * const vdev_params_keys[] = { + [RTE_VDEV_PARAMS_MAX] = NULL, +}; + +static int +vdev_dev_match(const struct rte_device *dev, + const void *_kvlist) +{ + const struct rte_kvargs *kvlist = _kvlist; + + (void) kvlist; + (void) dev; + return 0; +} + +void * +rte_vdev_dev_iterate(const void *start, + const char *str, + const struct rte_dev_iterator *it __rte_unused) +{ + struct rte_kvargs *kvargs = NULL; + struct rte_device *dev; + + if (str != NULL) { + kvargs = rte_kvargs_parse(str, vdev_params_keys); + if (kvargs == NULL) { + VDEV_LOG(ERR, "cannot parse argument list\n"); + rte_errno = EINVAL; + return NULL; + } + } + dev = rte_vdev_find_device(start, vdev_dev_match, kvargs); + rte_kvargs_free(kvargs); + return dev; +}
diff --git a/drivers/bus/vdev/vdev_private.h b/drivers/bus/vdev/vdev_private.h
new file mode 100644
index 000000000..ba6dc48ff
--- /dev/null
+++ b/drivers/bus/vdev/vdev_private.h@@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2018 Gaëtan Rivet + */ + +#ifndef _VDEV_PRIVATE_H_ +#define _VDEV_PRIVATE_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +struct rte_device * +rte_vdev_find_device(const struct rte_device *start, + rte_dev_cmp_t cmp, + const void *data); + +void * +rte_vdev_dev_iterate(const void *start, + const char *str, + const struct rte_dev_iterator *it); + +#ifdef __cplusplus +} +#endif + +#endif /* _VDEV_PRIVATE_H_ */
--
2.11.0